FAQ

You can try out the “Explain” function inside Binary Challenge App. It will show you a step by step explanation for every conversion step. To go there, just start a game, try to guess the numbers and if you got it wrong, click the “Explain” notification.

Binary numbers display their value with only two symbols, 0 and 1. Learn more

What are quaternary numbers?

Quaternary numbers display their value with four different symbols, 0, 1, 2 and 3. Learn more

What are hexadecimal numbers?

Hexadecimal numbers display their value with 16 different symbols, 0-9 and A-F. Learn more

I’d like to remove the ads or enable more options!

You can remove the ads and immediately enable features like “hexadecimal” and all bit-sizes via in-app purchases. To access the in-app purchase screen:

Go to the main setup screen in Binary Challenge (where you can select the numeral system, bit-size and mode)

Tap the little “star” on the right of the screen (next to the bit-sizes)

Select the in-app purchase of your choice

How to use Binary Challenge™ for my class or course?

Since Binary Challenge™ App is free, you can simply let all students install Binary Challenge™ from their App Store (iOS) or Play Store (Android).

If you’d like to remove the occasional ads or enable immediate access to hexadecimal numbers for your students, you can do so via a special discounted in-app purchase.

This in-app purchase will give you a code for a number of students (e.g. 25). The students enter that code on their devices to remove the ads or enable the features you bought.

Hints:

In-App purchases and enabling the features on the student-side requires an active internet connection

If you buy the code on an iOS device you and your students can use it on both Android and iOS devices. However, Apple does not allow codes bought on Android to work on iOS devices; if you buy the code on an Android device, its use is limited to Android devices.

To access the in-app purchase screen:

Go to the main setup screen in Binary Challenge

Tap the little “star” on the right of the screen (next to the bit-sizes)

On iOS devices you need to be logged into the Game Center. This is done by opening the Game Center App and login there.

On Android devices you need to log into Google Play Games. The dialog for that is automatically opened the first times you start Binary Challenge. If you like to open it manually you can click the Android-Icon in the main screen menu of Binary Challenge.